mac80211: adding 802.11n IEs handling

[powerpc.git] / net / mac80211 / ieee80211.c

diff --git a/net/mac80211/ieee80211.c b/net/mac80211/ieee80211.c
index f484ca7..4f8b665 100644 (file)
--- a/net/mac80211/ieee80211.c
+++ b/net/mac80211/ieee80211.c
@@ -216,6 +216,7 @@ static int ieee80211_open(struct net_device *dev)
                        res = local->ops->start(local_to_hw(local));
                if (res)
                        return res;
+               ieee80211_hw_config(local);
        }
 
        switch (sdata->type) {
@@ -232,7 +233,6 @@ static int ieee80211_open(struct net_device *dev)
                        netif_tx_unlock_bh(local->mdev);
 
                        local->hw.conf.flags |= IEEE80211_CONF_RADIOTAP;
-                       ieee80211_hw_config(local);
                }
                break;
        case IEEE80211_IF_TYPE_STA:
@@ -267,6 +267,17 @@ static int ieee80211_open(struct net_device *dev)
                tasklet_enable(&local->tasklet);
        }
 
+       /*
+        * set_multicast_list will be invoked by the networking core
+        * which will check whether any increments here were done in
+        * error and sync them down to the hardware as filter flags.
+        */
+       if (sdata->flags & IEEE80211_SDATA_ALLMULTI)
+               atomic_inc(&local->iff_allmultis);
+
+       if (sdata->flags & IEEE80211_SDATA_PROMISC)
+               atomic_inc(&local->iff_promiscs);
+
        local->open_count++;
 
        netif_start_queue(dev);
@@ -284,6 +295,18 @@ static int ieee80211_stop(struct net_device *dev)
 
        netif_stop_queue(dev);
 
+       /*
+        * Don't count this interface for promisc/allmulti while it
+        * is down. dev_mc_unsync() will invoke set_multicast_list
+        * on the master interface which will sync these down to the
+        * hardware as filter flags.
+        */
+       if (sdata->flags & IEEE80211_SDATA_ALLMULTI)
+               atomic_dec(&local->iff_allmultis);
+
+       if (sdata->flags & IEEE80211_SDATA_PROMISC)
+               atomic_dec(&local->iff_promiscs);
+
        dev_mc_unsync(local->mdev, dev);
 
        /* down all dependent devices, that is VLANs */
@@ -311,8 +334,7 @@ static int ieee80211_stop(struct net_device *dev)
                        ieee80211_configure_filter(local);
                        netif_tx_unlock_bh(local->mdev);
 
-                       local->hw.conf.flags |= IEEE80211_CONF_RADIOTAP;
-                       ieee80211_hw_config(local);
+                       local->hw.conf.flags &= ~IEEE80211_CONF_RADIOTAP;
                }
                break;
        case IEEE80211_IF_TYPE_STA:
@@ -328,12 +350,20 @@ static int ieee80211_stop(struct net_device *dev)
                synchronize_rcu();
                skb_queue_purge(&sdata->u.sta.skb_queue);
 
-               if (!local->ops->hw_scan &&
-                   local->scan_dev == sdata->dev) {
-                       local->sta_scanning = 0;
-                       cancel_delayed_work(&local->scan_work);
+               if (local->scan_dev == sdata->dev) {
+                       if (!local->ops->hw_scan) {
+                               local->sta_sw_scanning = 0;
+                               cancel_delayed_work(&local->scan_work);
+                       } else
+                               local->sta_hw_scanning = 0;
                }
+
                flush_workqueue(local->hw.workqueue);
+
+               sdata->u.sta.flags &= ~IEEE80211_STA_PRIVACY_INVOKED;
+               kfree(sdata->u.sta.extra_ie);
+               sdata->u.sta.extra_ie = NULL;
+               sdata->u.sta.extra_ie_len = 0;
                /* fall through */
        default:
                conf.if_id = dev->ifindex;
@@ -366,8 +396,8 @@ static void ieee80211_set_multicast_list(struct net_device *dev)
 
        allmulti = !!(dev->flags & IFF_ALLMULTI);
        promisc = !!(dev->flags & IFF_PROMISC);
-       sdata_allmulti = sdata->flags & IEEE80211_SDATA_ALLMULTI;
-       sdata_promisc = sdata->flags & IEEE80211_SDATA_PROMISC;
+       sdata_allmulti = !!(sdata->flags & IEEE80211_SDATA_ALLMULTI);
+       sdata_promisc = !!(sdata->flags & IEEE80211_SDATA_PROMISC);
 
        if (allmulti != sdata_allmulti) {
                if (dev->flags & IFF_ALLMULTI)
@@ -400,7 +430,6 @@ static const struct header_ops ieee80211_header_ops = {
 void ieee80211_if_setup(struct net_device *dev)
 {
        ether_setup(dev);
-       dev->header_ops = &ieee80211_header_ops;
        dev->hard_start_xmit = ieee80211_subif_start_xmit;
        dev->wireless_handlers = &ieee80211_iw_handler_def;
        dev->set_multicast_list = ieee80211_set_multicast_list;
@@ -500,7 +529,7 @@ int ieee80211_hw_config(struct ieee80211_local *local)
        struct ieee80211_channel *chan;
        int ret = 0;
 
-       if (local->sta_scanning) {
+       if (local->sta_sw_scanning) {
                chan = local->scan_channel;
                mode = local->scan_hw_mode;
        } else {
@@ -1072,7 +1101,8 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
        ieee80211_debugfs_add_netdev(IEEE80211_DEV_TO_SUB_IF(local->mdev));
        ieee80211_if_set_type(local->mdev, IEEE80211_IF_TYPE_AP);
 
-       result = ieee80211_init_rate_ctrl_alg(local, NULL);
+       result = ieee80211_init_rate_ctrl_alg(local,
+                                             hw->rate_control_algorithm);
        if (result < 0) {
                printk(KERN_DEBUG "%s: Failed to initialize rate control "
                       "algorithm\n", wiphy_name(local->hw.wiphy));
@@ -1233,8 +1263,17 @@ static int __init ieee80211_init(void)
 
        BUILD_BUG_ON(sizeof(struct ieee80211_tx_packet_data) > sizeof(skb->cb));
 
+#ifdef CONFIG_MAC80211_RCSIMPLE
+       ret = ieee80211_rate_control_register(&mac80211_rcsimple);
+       if (ret)
+               return ret;
+#endif
+
        ret = ieee80211_wme_register();
        if (ret) {
+#ifdef CONFIG_MAC80211_RCSIMPLE
+               ieee80211_rate_control_unregister(&mac80211_rcsimple);
+#endif
                printk(KERN_DEBUG "ieee80211_init: failed to "
                       "initialize WME (err=%d)\n", ret);
                return ret;
@@ -1248,6 +1287,10 @@ static int __init ieee80211_init(void)
 
 static void __exit ieee80211_exit(void)
 {
+#ifdef CONFIG_MAC80211_RCSIMPLE
+       ieee80211_rate_control_unregister(&mac80211_rcsimple);
+#endif
+
        ieee80211_wme_unregister();
        ieee80211_debugfs_netdev_exit();
 }